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CPS - c-base positioning system #146

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opened 2015-09-13 00:12:27 +02:00 by dazz · 10 comments
dazz commented 2015-09-13 00:12:27 +02:00 (Migrated from github.com)
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The CPS is for positioning artefacts on board the station, and not using GPS, as an global positioning system is unusable in context of liftoff from earth.
It is a cylyndrical positioning system.

image

directions

corewards

core is the true core and the only point where you can't go corewards.
core is defined as c0c0c0c0 or the REal core _c0Re_ and the main-antenna marks its position.

clampwards

when you're going towards the rim of the spacectation.

clockwise

going against how you would write the letter _C_

counterclockwise

going with the way one would write the letter _C_.

level

We have excavated 3 levels

Level 1 - c_huttle & tower
Level cero - mainhall
Level -1 - nerdarea and labs

notation

short format

Bold uppercase c in code style _C_

long format

c is a good separator and will be used to separate all parts of the coordinates.

c{version, 3}c{(circular) angle}c{distance from core, radial distance r}c{level}

c\d+c{0.0-360.0}c\d+c(-)\d+

Example: c3c30c1140c0 (mainhall)

The first element: version number

Right now we are in the 3rd reconstructions phase and therefore should use version c3 but still only have and use c2 maps. If we refer to location on the previous configurations, we change the version number accordingly.
There is a transformation matrix for transforming coordinates between versions.

The second element: the angle

Is a float number. c-base is at c30

The CPS is for positioning artefacts on board the station, and not using GPS, as an global positioning system is unusable in context of liftoff from earth. It is a cylyndrical positioning system. ![image](http://mathworld.wolfram.com/images/eps-gif/CylindricalCoordinates_1001.gif) ## directions ### corewards core is the true core and the only point where you can't go corewards. core is defined as `c0c0c0c0` or the REal core **_`c0Re`**_ and the main-antenna marks its position. ### clampwards when you're going towards the rim of the spacectation. ### clockwise going **_against_** how you would write the letter **_`C`**_ ### counterclockwise going **_with_** the way one would write the letter **_`C`**_. ### level We have excavated 3 levels Level 1 - c_huttle & tower Level cero - mainhall Level -1 - nerdarea and labs ## notation ### short format Bold uppercase c in code style **_`C`**_ ### long format c is a good separator and will be used to separate all parts of the coordinates. ``` c{version, 3}c{(circular) angle}c{distance from core, radial distance r}c{level} c\d+c{0.0-360.0}c\d+c(-)\d+ ``` Example: `c3c30c1140c0` (mainhall) #### The first element: version number Right now we are in the 3rd reconstructions phase and therefore should use version `c3` but still only have and use `c2` maps. If we refer to location on the previous configurations, we change the version number accordingly. There is a transformation matrix for transforming coordinates between versions. #### The second element: the angle Is a float number. c-base is at `c30`
cketti commented 2015-09-13 00:20:58 +02:00 (Migrated from github.com)
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  1. What unit is used to specify the distance?
  2. Which direction is "angle 0"?
  3. Does the angle increase clockwise or counter-clockwise?
  4. This definition lacks a reference to the standard on how to write the letter 'c'.
1. What unit is used to specify the distance? 2. Which direction is "angle 0"? 3. Does the angle increase clockwise or counter-clockwise? 4. This definition lacks a reference to the standard on how to write the letter 'c'.
dazz commented 2015-09-13 00:32:55 +02:00 (Migrated from github.com)
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@cketti

  1. multiples of pi (just kidding, we take metric system units on this version)
  2. we're working on that right now. the main difficulty is that we only have a version 2 map and the excavation point is off the map, angle for mainhall is c30
  3. clockwise, and we should change how we write the letter c, should also go clockwise
  4. see 3 if written out it is a bold uppercase c in code style _C_
@cketti 1. multiples of pi (just kidding, we take metric system units on this version) 2. we're working on that right now. the main difficulty is that we only have a version 2 map and the excavation point is off the map, angle for mainhall is `c30` 3. clockwise, and we should change how we write the letter c, should also go clockwise 4. see 3 if written out it is a bold uppercase c in code style **_`C`**_
cmile commented 2015-09-13 00:37:39 +02:00 (Migrated from github.com)
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screen shot 2015-09-13 at 00 34 38

the angle of rs20 (cbrp3) is ca. 30 degrees

![screen shot 2015-09-13 at 00 34 38](https://cloud.githubusercontent.com/assets/707751/9834164/8ebf324e-59af-11e5-86d1-ce7adef80254.png) the angle of rs20 (cbrp3) is ca. 30 degrees
cannonerd commented 2015-09-13 00:39:16 +02:00 (Migrated from github.com)
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The first c0 in the CPS is the version number. Right now we are in the c3 era. If we refer to location on the previous configurations, we change the version number accordingly.

The first c0 in the CPS is the version number. Right now we are in the c3 era. If we refer to location on the previous configurations, we change the version number accordingly.
cketti commented 2015-09-13 00:57:52 +02:00 (Migrated from github.com)
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If we only allow full degrees the accuracy at the outer edge of the station is pretty bad.

If we only allow full degrees the accuracy at the outer edge of the station is pretty bad.
dazz commented 2015-09-13 01:14:43 +02:00 (Migrated from github.com)
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@cketti Good point I updated the angle to float.

@cketti Good point I updated the angle to float.
cmile commented 2015-09-13 01:16:15 +02:00 (Migrated from github.com)
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screen shot 2015-09-13 at 01 14 42

![screen shot 2015-09-13 at 01 14 42](https://cloud.githubusercontent.com/assets/707751/9834298/eb6ad9f8-59b4-11e5-97a7-8db73b9e6d2c.png)
uwekamper commented 2016-05-27 10:44:22 +02:00 (Migrated from github.com)
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Hier gibt es einen Workshop zu WLAN location: http://www.meetup.com//de-DE/openBerlin/events/231418204/?showDescription=true

Evtl. ist das ja interessant hier für

Hier gibt es einen Workshop zu WLAN location: http://www.meetup.com//de-DE/openBerlin/events/231418204/?showDescription=true Evtl. ist das ja interessant hier für
bergie commented 2017-05-17 16:53:33 +02:00 (Migrated from github.com)
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Related #4

Also, this could be useful https://github.com/nemein/presence-sensor-bluetooth

Related #4 Also, this could be useful https://github.com/nemein/presence-sensor-bluetooth
bergie commented 2017-12-07 21:44:59 +01:00 (Migrated from github.com)
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needs aligning with the coordinate system used in https://github.com/c-base/c-base-map

needs aligning with the coordinate system used in https://github.com/c-base/c-base-map
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